Home / 13,054.08-18,014.76-7,085.80

Finding the Fourth Proportional to 13,054.08, 18,014.76 and 7,085.80

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Solution

The fourth proportional to 13,054.08, 18,014.76 and 7,085.80 is: 9,778.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,054.08 : 18,014.76 = 7,085.80 : x
  2. Step 2: Convert to fraction form
    13,054.08/18,014.76 = 7,085.80/x
  3. Step 3: Cross multiply
    13,054.08x = 18,014.76 × 7,085.80
  4. Step 4: Simplify right side
    13,054.08x = 127,648,986.41
  5. Step 5: Solve for x
    x = 127,648,986.41/13,054.08
  6. Step 6: Final answer
    x = 9,778.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.